V 838 Monocerotis — a Newly Discovered , Very Peculiar , Slow Nova - Like Object
نویسندگان
چکیده
The eruptive variable V838 Mon was discovered on Jan 6, 2002. Due to a subsequent phase of almost constant brightness and a spectral appearance which is unlike classical novae, speculations have been made about its nature. Either it was a very peculiar, slow nova defining a new class, an eruptive event in an evolved star as in the case of Sakurai's Object but in a much earlier phase, or something completely different.
منابع مشابه
ar X iv : a st ro - p h / 05 06 40 3 v 1 1 7 Ju n 20 05 Near - Infrared water lines in V 838 Monocerotis
V838 Monocerotis had an intriguing, nova-like outburst in January 2002 which has subsequently led to several studies of the object. It is now recognized that the outburst of V838 Mon and its evolution are different from that of a classical nova or other classes of well-known eruptive variables. V838 Mon, along with two other objects that have analogous properties, appears to comprise a new clas...
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V838 Monocerotis had an intriguing, nova-like outburst in 2002 January that has subsequently led to several studies of the object. It is now recognized that the outburst of V838 Mon and its evolution are different from those of a classical nova or other classes of well-known eruptive variables. V838 Mon, along with two other objects that have analogous properties, appears to make up a new class...
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We have used long-baseline near-IR interferometry to resolve the peculiar eruptive variable V838 Mon and to provide the first direct measurement of its angular size. Assuming a uniform disk model for the emission we derive an apparent angular diameter of 1.83±0.06 milli-arcseconds. For a nominal distance of 8 ± 2 kpc, this implies a linear radius of 1570 ± 400R⊙. However, the data are somewhat ...
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